The engineers were angry at the original proposal of a 1% increase for the year starting on August 1, 2014, with a further 2% from August 1 this year. Details of the new offer, based on a one-year deal, have not been disclosed.

Unite regional officer Sarah Mitchell said: “The six-hour stoppages have been suspended for our members to vote on a further offer from the company. Unite won’t be commenting further until this vote has taken place.”